Missing Audio on MP4 Renders Using SV Pro 11

I am trying to post in Vimeo and Wistia using MP4. Wistia asks for the following: MP4 using H.264 at a resolution of 1280x720 and a bitrate of 3000 kbps. For the audio, use AAC with a bitrate of 128 kbps and a sample rate of 44.1 kHz.